Get a local business phone number in Lexington, MA

Lexington area codes

Lexington, in Middlesex County, Massachusetts, had a Census-estimated population of 34,743 in July 2024. NANPA lists 61 exchanges for its rate center across 2 area codes; 781 has the most (56, 92%). 781 is part of an overlay with 339, so a new local number in Lexington may carry any of those codes depending on which have numbers available. Lexington is in the Eastern time zone.

According to NANPA's dialing-plan data, local calls within 781 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Lexington exchanges by carrier

10 carriers hold the 61 exchanges assigned to Lexington's rate center. Verizon New England INC. has the most, with 18. 51 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. The table counts codes by the operating company NANPA assigned them to, not by who serves each number today.

Exchanges (NPA-NXX) assigned in Lexington

These are the central office codes NANPA records for Lexington. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2001. 1 of the 61 were assigned in 2020 or later.

When Lexington's exchanges were assigned

The table groups Lexington's exchanges by the decade NANPA recorded them as assigned.

What makes a number local to Lexington

Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Lexington's numbers are rated to the LEXINGTON rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Lexington number.

If your business already has a Lexington number, porting it to Callata is free and keeps it on your cards, listings and vehicles.

The local business market

Lexington is part of the Boston-Cambridge-Newton, MA-NH metro area, home to 5.0 million people in 2024. County Business Patterns counted 133,807 business establishments in the Boston, MA-NH metro area in 2023, employing 2,681,704 people. The largest sectors by establishment count are professional, scientific, and technical services (17,803), retail trade (15,568), and health care and social assistance (15,127).

Business phone service in Lexington

Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.

Porting a number you already use in Lexington is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.

The comparison below uses 20 users, the rounded average establishment size in the Boston, MA-NH metro area. At list prices checked September 28, 2026, that is $499.00 a month on Ooma Office Pro and $600.00 on RingCentral RingEX Core. Callata comes to $399.00 a month for 20 users ($99 a month with 5 users included, then $20 per additional user), below both.